Koulibaly's contract at Napoli lasts until 2019, but with the
club knowing he wants to leave and Chelsea offering so much money
it seems likely Napoli will agree a deal. It would be a coup for
the Chelsea, as Koulibaly is considered one of the most versatile
defenders in the world.

Either way, Chelsea does not have long to get Koulibaly if it
wants him to start at the beginning of the season — the club's
first game of the new Premier League season is against West Ham
on August 15.